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2 years ago

How to solve: 6+7=8−15

Mathematics

2 answers:

pentagon [3]2 years ago

8 0

Answer:

13=-7 or No solution

Step-by-step explanation:

1st - Combine like terms

last - evaluate what the answer is telling you if it is not the same on both sides (Ex. 13=-7 ) then it means No solution

aliya0001 [1]2 years ago

3 0

Answer:you solve on each sides like normal then your equation will come out as “not a solution”

Step-by-step explanation:

13=-7

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During the day, Sam spent $4.85 on lunch. He also bought two books for $7.95 each at the end of the day he had $8.20 left.How mu

ch4aika [34]

We can add the money he spent to the money he had left to find the total.

4.85 + 15.9 + 8.20 = 28.95

He started with 28.95

6 0

2 years ago

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Multiply: (3x – 5)(–x + 4)

LiRa [457]

Answer:

Step-by-step explanation:

(3x – 5)(–x + 4)

(3x)(–x) + (3x)(4) + (–5)(–x) + (–5)(4).

-3x^2+12x +5x -20

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2 years ago

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Factor 2x2 + 11x + 15 using algebra tiles and symbolically

fomenos

$2x^{2}+11x+15=2x^{2}+6x+5x+15=2x(x+3)+5(x+3)= \\ \\ (2x+5)(x+3)$

7 0

2 years ago

Rewrite each equation in vertex form by completing the square. Then identify the vertex.

ioda

ANSWER

Vertex form;

$y = 3( {x + \frac{3}{2} })^{2} - \frac{35}{4}$

Vertex

$V( - \frac{3}{2} , - \frac{35}{4} )$

EXPLANATION

Given:

$f(x) = 3 {x}^{2} + 9x - 2$

We complete the square as follows:

$y = 3( {x}^{2} + 3x) - 2$

$y = 3( {x}^{2} + 3x + \frac{9}{4} ) - 2 - 3 \times \frac{9}{4}$

The vertex form is:

$y = 3( {x + \frac{3}{2} })^{2} - \frac{35}{4}$

The vertex is

$V( - \frac{3}{2} , - \frac{35}{4} )$

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3 years ago

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Is 6,7,13 a right triangle

Scilla [17]

Answer:

Step-by-step explanation:

For a right triangle, according to the Pythagorean Theorem, the 2 sides squared must equal the hypotenuse squared. ( $a^{2} +b^{2} =c^{2}$ )

The hypotenuse is the longest side so $13^{2}=169$

$6^{2}=36\\7^{2}=49$

36 + 49 does not equal 169

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2 years ago